Jorge Manrubia
20 lines
649 B
Ruby
20 lines
649 B
Ruby
class AddLastActiveAtToBubbles < ActiveRecord::Migration[8.1]
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def change
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add_column :bubbles, :last_active_at, :datetime
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add_index :bubbles, %i[ last_active_at status ]
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execute <<~SQL
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update bubbles
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set last_active_at = activity.last_active_at
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from (
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select bubbles.id as bubble_id, coalesce(max(events.created_at), bubbles.created_at) as last_active_at
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from bubbles
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left join events on bubbles.id = events.bubble_id group by bubbles.id
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) as activity
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where bubbles.id = activity.bubble_id
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SQL
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change_column_null :bubbles, :last_active_at, false
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end
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end
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